IR21824

Current - Peak Output (Source, Sink):	1.9A, 2.3A
Base Part Number:	IR21824
Supplier Device Package:	14-DIP
Package / Case:	14-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 150°C (TJ)
Rise / Fall Time (Typ):	40ns, 20ns
High Side Voltage - Max (Bootstrap):	600V
Input Type:	Non-Inverting
Series:	--
Logic Voltage - VIL, VIH:	0.8V, 2.7V
Voltage - Supply:	10 V ~ 20 V
Gate Type:	IGBT, N-Channel MOSFET
Number of Drivers:	2
Channel Type:	Independent
Driven Configuration:	Half-Bridge
Part Status:	Obsolete
Packaging:	Tube

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The IR21824 is a PMIC – gate driver that is used extensively in modern electronics technology. It is a voltage logically controlled MOSFET which is designed for high performance applications. This device offers a few advantages when compared to its peers such as, low quiescent current and wide input-output voltage range, which is ideal for regulating a voltage source or a current source. In this document, the working principle and application field of the IR21824 will be discussed in detail. The IR21824 is a latest-generation, low-power, single-input, low-voltage MOSFET driver designed for automotive and industrial applications. This device has an on-chip high-voltage rail-to-rail level shifting and a schottky diode. It is capable of driving up to 3.2V on its high-side FET and up to 6.75V on the low-side FET. It is compatible with the popular high-side/low-side pair and features a fast fall-time of only 1.3ns and a low quiescent current of 6µA. The device also has an open drain output stage, allowing it to be used in configurations with both sinking and sourcing applications. The IR21824 operates by switching the low side MOSFET on or off depending on the logic level at the input. When the input logic level is low, the low side MOSFET is switched off, thus preventing current flow from the supply to the load. During this time, the high side FET is held in the off state. When the input logic level is high, the low side FET is switched on, thus allowing current to flow from the supply to the load. At the same time, the high side FET is switched on, completing the load current path. The primary application fields of the IR21824 are in automotive and industrial applications. In automotive applications, the device can be used to control airbag inflators and air conditioning components. It can be used to control the speed of a motor, such as in electric vehicle (EV) motor speed control, and is well suited for applications that require low quiescent current and high efficiency. In industrial applications, the IR21824 can be used to control pumps, motors, and actuators. It is particularly useful for applications in the factory automation, instrumentation, and medical device sectors. In conclusion, the IR21824 is a powerful and reliable high-side/low-side MOSFET driver that can be used in a variety of automotive and industrial applications. It has a fast fall-time and a low quiescent current, allowing it to be used in power-sensitive applications, and its rail-to-rail hopping technology make it ideal for controlling high-side and low-side FETs. This device is the perfect choice for any application that requires precise control of current or voltage paths.

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